Y02A 20/124
Water desalination
Y02A20/124 (Water desalination) appears on 2,395 US grants and 2,794 published applications in this corpus.
Search patents in Y02A- Granted patents
- 2,395
- Published applications
- 2,794
- Assignees
- 1,222
- Inventors
- 5,234
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 24 | 0 |
| 1977 | 10 | 0 |
| 1978 | 16 | 0 |
| 1979 | 22 | 0 |
| 1980 | 31 | 0 |
| 1981 | 21 | 0 |
| 1982 | 40 | 0 |
| 1983 | 17 | 0 |
| 1984 | 18 | 0 |
| 1985 | 16 | 0 |
| 1986 | 15 | 0 |
| 1987 | 20 | 0 |
| 1988 | 16 | 0 |
| 1989 | 17 | 0 |
| 1990 | 8 | 0 |
| 1991 | 15 | 0 |
| 1992 | 21 | 0 |
| 1993 | 14 | 0 |
| 1994 | 18 | 0 |
| 1995 | 17 | 0 |
| 1996 | 16 | 0 |
| 1997 | 14 | 0 |
| 1998 | 15 | 0 |
| 1999 | 17 | 0 |
| 2000 | 23 | 0 |
| 2001 | 24 | 4 |
| 2002 | 30 | 26 |
| 2003 | 25 | 30 |
| 2004 | 26 | 52 |
| 2005 | 22 | 47 |
| 2006 | 32 | 54 |
| 2007 | 22 | 76 |
| 2008 | 30 | 72 |
| 2009 | 50 | 109 |
| 2010 | 53 | 120 |
| 2011 | 63 | 156 |
| 2012 | 62 | 134 |
| 2013 | 71 | 103 |
| 2014 | 93 | 132 |
| 2015 | 85 | 144 |
| 2016 | 85 | 139 |
| 2017 | 91 | 140 |
| 2018 | 110 | 155 |
| 2019 | 141 | 139 |
| 2020 | 122 | 146 |
| 2021 | 121 | 165 |
| 2022 | 121 | 146 |
| 2023 | 136 | 200 |
| 2024 | 129 | 156 |
| 2025 | 134 | 94 |
| 2026 | 56 | 55 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method of preparing reverse osmosis membrane with charged hydrogel and polyamide double network8 Sep 2026US 12,728,388 B2
- Method for operating separation membrane module, computer-readable recording medium having program recorded thereon, and water production system18 Aug 2026US 12,708,878 B2Toray Industries, Inc.
- Composite semipermeable membrane, spiral membrane element, water treatment system, and water treatment method18 Aug 2026US 12,708,880 B2Nitto Denko Corporation
- Thin-film composite membranes synthesized by multi-step coating methods18 Aug 2026US 12,708,881 B2Katholieke Universiteit Leuven
- Method for purifying liquid and system for the implementation thereof11 Aug 2026US 12,702,952 B2Electrophor, Inc.
- Systems, devices, and methods for electrodialysis-based home-scale desalination13 Aug 2026US 2026/0234033 A1Massachusetts Institute of Technology
- Composite semipermeable membrane, composite semipermeable membrane module, fluid separation device, and method for producing composite semipermeable membrane6 Aug 2026US 2026/0225045 A1Toray Industries, Inc.
- A plate heat exchanger, a heat exchanging plate and a method of treating a feed such as sea water6 Aug 2026US 2026/0225920 A1Alfa Laval Corporate AB
- Energy-free and spontaneous reverse osmosis device6 Aug 2026US 2026/0225921 A1Xi'an Xishizun Electromechanical Technology Co., Ltd
- Altering properties of a fluid and magnetically assisted desalination6 Aug 2026US 2026/0225927 A1
Most cited
By later US patents
- Water-mist blower cooling system and its new applications215US 6,293,121 B12001
- Wind-powered electricity generating system including wind energy storage195US 5,384,489 A1995
- Hollow fiber cartridge165US 5,470,469 AE. I. Du Pont de Nemours and Company · 1995
- Offshore wind turbine with multiple wind rotors and floating system156US 7,075,189 B2Ocean Wind Energy Systems · 2006
- System for the obtaining of energy by fluid flows resembling a natural cyclone or anti-cyclone149US 4,452,046 A1984